Ground sand setting device suitable for fracturing flow-back fluid
By designing a ground-based sand settling device, the fracturing fluid and sand are separated using baffles and hydraulic telescopic devices, solving the problem of incomplete separation of fracturing fluid and sand, and improving the pumping efficiency and safety of the fluid transport vehicle.
Patent Information
- Application Number
- CN202422723790.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing technologies, the separation of fracturing fluid and fracturing sand is incomplete, which affects the pumping efficiency of the self-priming pump of the fluid transport vehicle and may even lead to damage to the self-priming pump. Furthermore, the sand sediment in the fluid transport vehicle is difficult to handle, posing a safety hazard.
A ground sand settling device was designed, including an outer shell and a hydraulic telescopic device. Solid-liquid separation is achieved through multiple baffles and a manual channel. The sand is discharged after the outer shell is tilted. The structure is simple and easy to operate.
It achieves complete separation of fracturing fluid and sand, ensures the suction efficiency of the self-priming pump of the fluid transport vehicle, reduces the failure rate, simplifies the sand treatment process, and improves operational efficiency and safety.
Smart Images
Figure CN223901288U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to fracturing flow-back fluid cleaning device technical field relates to the ground sand setting device suitable for fracturing flow-back fluid. BACKGROUND
[0002] In recent years, with the deepening of exploration degree and the continuous improvement of development technology, the production proportion of low permeability reservoir is increasing, and it is urgent to develop new technology for low permeability reservoir, change the development mode, and speed up the effective use of reserves. Fracturing technology is an effective measure to realize yield increase of oil well.
[0003] Fracturing technology generally uses high-pressure pump truck group on the ground to inject high-viscosity liquid with discharge capacity higher than the absorption capacity of the bottom layer into the oil well, so that high pressure can be formed at the bottom end of the oil well. When the formed high pressure is greater than the breaking pressure of the formation itself, one or several cracks will be generated at the bottom of the oil well. After the fracturing liquid enters these cracks, a certain crack space can be formed at the bottom end of the oil well under the action of the proppant. After the high-pressure pump stops, the crack space will not close. Such crack space has very good flow guiding effect, which effectively improves the seepage condition of the oil well and realizes the goal of yield increase and injection increase. With the improvement of the flow guiding capacity of the cracks, a large amount of fracturing liquid will be injected into the underground reservoir.
[0004] After fracturing construction is completed, the downhole tool lowered into the well needs to be taken out to the ground, and then the production pipe column is lowered for production. However, after fracturing construction is completed, local high pressure will be formed in the wellbore. Before the downhole tool is taken out, blowout operation needs to be taken to release the high pressure in the wellbore. During blowout, the liquid injected into the bottom of the well will carry part of the fracturing sand through the cracks to the wellbore, and then the mixture of fracturing liquid and fracturing sand returned to the ground will be discharged to the ground through the oil pipe. The mixture of fracturing liquid and fracturing sand returned to the ground enters the storage tank and is sucked into the liquid transport vehicle by the ground pump truck. Since the fracturing sand mixed in the fracturing liquid will damage the self-priming pump, and the fracturing sand carried into the liquid transport vehicle will also be deposited, the liquid transport vehicle also needs to be cleaned regularly. It is very difficult to clean the sand in the sealed liquid transport vehicle, and there is a certain safety hazard. Therefore, a ground sand setting device suitable for fracturing flow-back fluid needs to be designed to realize complete separation of fracturing liquid and sand, effectively ensure the suction efficiency of the self-priming pump of the liquid transport vehicle, reduce the failure rate of the self-priming pump, and solve the problem of difficult sand setting of the liquid transport vehicle. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a ground sand setting device suitable for fracturing flow-back fluid, solving the problem that the suction efficiency of the self-priming pump of the liquid transport vehicle is affected by incomplete separation of fracturing liquid and fracturing sand in the prior art, and even the self-priming pump is damaged.
[0006] The utility model adopts the technical scheme, be applicable to fracturing flow -back fluid's ground sand setting device, including the shell body of installing on the liquid transport vehicle chassis, the sand outlet valve is provided on the side wall of the shell body away from the liquid transport vehicle head, the fracturing flow -back fluid import is provided with one end near the sand outlet valve at the top of shell body, the liquid outlet is provided with the lower end of the side wall of one end near the liquid transport vehicle head at the shell body, the direction of the shell body from the fractivating flow -back fluid import to the liquid outlet is separated into first depositing area, second depositing area, outlet area in proper order through first baffle, second baffle, the first fluid channel is evenly provided with a plurality of in the upper position of first baffle middle, the second fluid channel is evenly provided with a plurality of in the lower middle of second baffle.
[0007] The utility model is characterized in further that:
[0008] The one end of the shell body away from the liquid transport vehicle head is hinged to the liquid transport vehicle chassis, and the hydraulic telescopic device is further arranged on the liquid transport vehicle chassis, the telescopic end of the hydraulic telescopic device is hinged to the bottom of the shell body, the included angle between the extension direction of the telescopic end of the hydraulic telescopic device and the direction horizontally towards the tail of the liquid transport vehicle is an acute angle, when the telescopic end of the hydraulic telescopic device is extended, the one end of the shell body near the head of the liquid transport vehicle is lifted, and the one end of the shell body hinged to the liquid transport vehicle chassis rotates along the hinge.
[0009] The bottom of the first baffle and the second baffle is further respectively provided with a second manual channel and a first manual channel.
[0010] The second manual channel and the first manual channel are the same in structure, and each include a rectangular channel opening arranged at the lower end of the first baffle and the second baffle, the rectangular channel opening is provided with a slot at the two sides of the first baffle and the second baffle, a plug is inserted into the slot, a handle is connected to the upper end of the plug, and the other end of the handle extends out of the top of the shell body.
[0011] A sealing ring is arranged at the matching position of the handle and the shell body.
[0012] Threads are arranged on the fracturing flow -back fluid import and the liquid outlet, and a fracturing pipeline and a liquid outlet pipe are connected to the fracturing flow -back fluid import and the liquid outlet through threaded connection respectively.
[0013] A liquid outlet valve is arranged at the end of the liquid outlet pipe away from the shell body.
[0014] The hydraulic telescopic device is a hydraulic cylinder.
[0015] The utility model has the advantages that:
[0016] Through the deposition of the first and second depositing areas, the solid-liquid of the fracturing flow -back fluid is fully separated, and the fracturing flow -back fluid can be reused.
[0017] The first depositing area can deposit a large amount of fracturing sand, which is placed at the tail of the vehicle, and the sand can be discharged from the shell body after the shell body is inclined by the hydraulic telescopic device.
[0018] The first manual passage and the second manual passage of the utility model make the remaining liquid in the deposition area discharge from the shell.
[0019] The utility model discloses simple structure, easy operation, fully considers the construction condition on site, saves time, operation cost. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structure schematic view of the utility model suitable for the ground sand setting device of fracturing flowback fluid,
[0021] Figure 2 It is the structure schematic view of the utility model suitable for the ground sand setting device of fracturing flowback fluid.
[0022] In the drawing: 1-flowback fluid import, 2-first fluid hole, 3-first deposition area, 4-liquid export pipe, 5-second fluid hole, 6-second deposition area, 7-first manual passage, 8-second manual passage, 9-outer shell, 10-sand export valve, 11-hydraulic telescopic device, 12-first baffle, 13-second baffle, 14-outlet area, 15-handle, 16-liquid export valve, 17-plugboard. DETAILED DESCRIPTION
[0023] The utility model will be explained in detail below in connection with the drawings and specific embodiment.
[0024] Example 1
[0025] The utility model is suitable for the ground sand setting device of fracturing flowback fluid, and its structure as Figure 1 Shown, including installing on the outer shell 9 of liquid transport vehicle chassis, the outer shell 9 is set up sand export valve 10 on the side wall of the one side of liquid transport vehicle head, and the outer shell 9 top is set up flowback fluid import 1 in the one end close to sand export valve 10, and the outer shell 9 is set up liquid export in the side wall lower end of the one end close to liquid transport vehicle head, and the direction of the outer shell 9 from flowback fluid import 1 to liquid export is sequentially separated into first deposition area 3, second deposition area 6, outlet area 14 by first baffle 12, second baffle 13, the first baffle 12 is evenly set up with a plurality of first fluid hole 2 in the middle upper position, and the second baffle 13 is evenly set up with a plurality of second fluid hole 5 in the middle lower position.
[0026] The outer shell 9 is hinged to the chassis of the liquid transport vehicle at the end away from the front of the liquid transport vehicle. A hydraulic telescopic device 11 is also provided on the chassis of the liquid transport vehicle. The telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer shell 9. The extension direction of the telescopic end of the hydraulic telescopic device 11 forms an acute angle with the horizontal direction towards the rear of the liquid transport vehicle. When the telescopic end of the hydraulic telescopic device 11 extends, the end of the outer shell 9 near the front of the liquid transport vehicle is lifted, and the end of the outer shell 9 that is hinged to the chassis of the liquid transport vehicle rotates along the hinge.
[0027] The flowback fluid inlet 1 is connected to the fracturing pipeline, allowing the flowback fluid to enter the deposition zone inside the shell;
[0028] The first sedimentation zone 3 is where the backflow liquid enters the sedimentation zone. Solid-liquid separation is achieved by relying on its own gravity difference. The solid remains at the bottom of the first sedimentation zone, and the liquid enters the second sedimentation zone 6 through the first fluid channel 2.
[0029] The second sedimentation zone 6 is where the backflow liquid enters from the first sedimentation zone and achieves solid-liquid separation by relying on its own gravity difference. The solid remains at the bottom of the second sedimentation zone, and the liquid reaches the liquid outlet through the second fluid channel 5 and is discharged from the shell.
[0030] The working principle of this embodiment is as follows:
[0031] Fracturing flowback fluid enters the shell through flowback fluid inlet 1. In the first deposition zone 3, most of the fluid enters the second deposition zone 6 through the first fluid channel 2. A large amount of solid sand is deposited in the first deposition zone 3. In the second deposition zone 6, most of the fluid is discharged to the liquid outlet through the second fluid channel 5. A small amount of solid sand is deposited in the second deposition zone 6, and then the liquid is discharged through the liquid outlet. After the liquid is completely discharged, the hydraulic telescopic device 11 is opened to tilt the entire outer shell 9 to a certain angle, and then the sand outlet valve 10 is opened to discharge the sand. Figure 2 As shown. A small amount of solid sand is deposited in the second deposition zone 6. The amount is very small. When the deposition height affects the liquid flow in the second fluid channel 5, it is manually cleaned.
[0032] Example 2
[0033] A surface sand settling device suitable for fracturing flowback fluid has the following structure: Figure 1 As shown, the device includes an outer shell 9 mounted on the chassis of a liquid transport vehicle. A sand outlet valve 10 is provided on the side wall of the outer shell 9 away from the front of the liquid transport vehicle. A return liquid inlet 1 is provided at the top end of the outer shell 9 near the sand outlet valve 10. A liquid outlet is provided at the lower end of the side wall of the outer shell 9 near the front of the liquid transport vehicle. The outer shell 9 is divided into a first sedimentation zone 3, a second sedimentation zone 6, and an outlet zone 14 in sequence from the return liquid inlet 1 to the liquid outlet by a first partition 12 and a second partition 13. A plurality of first fluid channels 2 are uniformly arranged at the upper middle position of the first partition 12, and a plurality of second fluid channels 5 are uniformly arranged at the lower middle position of the second partition 13.
[0034] The outer shell 9 is hinged to the chassis of the liquid transport vehicle at the end away from the front of the vehicle. A hydraulic telescopic device 11 is also provided on the chassis of the liquid transport vehicle, and the telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer shell 9. The angle between the extension direction of the telescopic end of the hydraulic telescopic device 11 and the horizontal direction towards the rear of the vehicle is an acute angle. When the telescopic end of the hydraulic telescopic device 11 is extended, the end of the outer shell 9 close to the front of the vehicle is lifted, and the end of the outer shell 9 hinged to the chassis of the liquid transport vehicle rotates along the hinge.
[0035] The first partition 12 and the second partition 13 are also respectively provided with a second manual passage 8 and a first manual passage 7 at the bottom.
[0036] The first deposition area 3 is for the flowback fluid to enter the deposition area and realize solid-liquid separation by relying on the self-gravitational difference. The solid is left at the bottom of the first deposition area, and the liquid enters the second deposition area 6 through the first fluid channel 2.
[0037] The second deposition area 6 is for the flowback fluid to enter the second deposition area from the first deposition area and realize solid-liquid separation by relying on the self-gravitational difference. The solid is left at the bottom of the second deposition area, and the liquid reaches the liquid outlet through the second fluid channel 5 and is discharged from the shell.
[0038] The working principle of the embodiment is as follows:
[0039] The flowback fluid enters the shell through the flowback fluid inlet 1. Most of the fluid in the first deposition area 3 enters the second deposition area 6 through the first fluid channel 2. A large amount of solid sand is deposited in the first deposition area 3, and the remaining fluid can be discharged to the second deposition area 6 by lifting the second manual passage 8. Most of the fluid in the second deposition area 6 is discharged to the liquid outlet through the second fluid channel 5, and a small amount of solid sand is deposited in the second deposition area 6. The remaining fluid can be discharged to the liquid outlet by lifting the second manual passage 7. After the liquid is completely discharged, the hydraulic telescopic device 11 is opened to tilt the entire outer shell 9 to a certain angle, and the sand outlet valve 10 is opened to discharge the sand. As shown in Figure 2 After the solid sand is deposited freely, the flowability is poor due to the self-gravity and the viscosity between the sand, which is similar to a whole solid. Therefore, the second manual passage 7 and the second manual passage 8 are opened, and the sand bonded together cannot pass through.
[0040] Embodiment 3
[0041] The ground sand setting device suitable for flowback fluid of fracturing is shown in Figure 1As shown, including the installation on the liquid transport vehicle chassis shell 9, shell 9 away from the liquid transport vehicle head side wall provided with sand outlet valve 10, shell 9 top near the sand outlet valve 10 one end provided with return fluid inlet 1, shell 9 near the liquid transport vehicle head one end of the lower end of the side wall provided with liquid outlet, shell 9 from the return fluid inlet 1 to the liquid outlet direction through the first partition 12, 13 second partition is divided into first sedimentation zone 3, 6, 14 second sedimentation zone outlet area, the first partition 12 in the middle of the upper position is uniformly provided with a plurality of first fluid channel 2, the second partition 13 in the middle of the lower end is uniformly provided with a plurality of second fluid channel 5.
[0042] The shell 9 away from the liquid transport vehicle head end and the liquid transport vehicle chassis hinge, the liquid transport vehicle chassis is also provided with hydraulic telescopic device 11, the telescopic end of the hydraulic telescopic device 11 and the bottom of the shell 9 hinge, the telescopic end of the hydraulic telescopic device 11 is stretched out, the direction of the shell 9 near the liquid transport vehicle head end is lifted, the shell 9 and the liquid transport vehicle chassis hinge end along the hinge rotation.
[0043] The first partition 12 and the second partition 13 are also provided with a second manual channel 8 and a first manual channel 7 respectively.
[0044] The second manual channel 8 and the first manual channel 7 are the same structure, both including the setting of the first partition 12 and the second partition 13 lower end of the rectangular channel mouth, the rectangular channel mouth is located in the first partition 12 and the second partition 13 both sides of the setting of the slot, the slot is inserted with the plugboard 17, the upper end of the plugboard 17 is connected with the handle 15, the other end of the handle 15 is stretched out of the top of the shell 9.
[0045] The first sedimentation zone 3 is the return fluid into the sedimentation zone, which realizes the solid-liquid separation by relying on its own gravity difference, the solid is left in the bottom of the first sedimentation zone, and the liquid enters the second sedimentation zone 6 through the first fluid channel 2.
[0046] The second sedimentation zone 6 is the return fluid from the first sedimentation zone into the second sedimentation zone, which realizes the solid-liquid separation by relying on its own gravity difference, the solid is left in the bottom of the second sedimentation zone, and the liquid reaches the liquid outlet through the second fluid channel 5, and is discharged from the shell.
[0047] The working principle of the embodiment is:
[0048] The fracturing flowback fluid enters the casing through the flowback fluid inlet 1, most of the fluid enters the second deposition area 6 through the first fluid channel 2 in the first deposition area 3, a large amount of solid sand is deposited in the first deposition area 3, the remaining fluid can be discharged to the second deposition area 6 through the second manual channel 8 by lifting the handle 15 to make the plug-in plate 17 move up, most of the fluid is discharged to the liquid outlet 4 through the second fluid channel 5 in the second deposition area 6, a small amount of solid sand is deposited in the second deposition area 6, the remaining fluid can be discharged to the liquid outlet through the second manual channel 7 by lifting the handle 15 to make the plug-in plate 17 move up, when the liquid is discharged clean, the hydraulic telescopic device 11 is opened to tilt the whole outer casing 9 to a certain angle, then the sand outlet valve 10 is opened to discharge the sand, as shown in Figure 2
[0049] Example 4
[0050] The ground sand deposition device suitable for fracturing flowback fluid has the structure as shown in Figure 1 The ground sand deposition device suitable for fracturing flowback fluid has the structure as shown in
[0051] The outer casing 9 is hinged to the liquid vehicle chassis at the end away from the vehicle head, the hydraulic telescopic device 11 is further arranged on the liquid vehicle chassis, the telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer casing 9, the included angle between the extension direction of the telescopic end of the hydraulic telescopic device 11 and the horizontal direction towards the vehicle tail is an acute angle, when the telescopic end of the hydraulic telescopic device 11 is extended, the end of the outer casing 9 close to the vehicle head is lifted, and the end of the outer casing 9 hinged to the liquid vehicle chassis rotates along the hinge.
[0052] The first and second separation plates 12 and 13 are further respectively provided with the second and first manual channels 8 and 7.
[0053] The second and first manual channels 8 and 7 have the same structure, both including a rectangular channel opening arranged at the lower end of the first and second separation plates 12 and 13, the rectangular channel opening is provided with a plug-in slot at both sides of the first and second separation plates 12 and 13, a plug-in plate 17 is inserted into the plug-in slot, a handle 15 is connected to the upper end of the plug-in plate 17, and the other end of the handle 15 extends out of the top of the outer casing 9.
[0054] A sealing ring is arranged at the cooperation position of the handle 15 and the outer casing 9.
[0055] The working principle of the embodiment is as follows:
[0056] The fracturing flowback fluid enters the shell through the flowback fluid inlet 1, most of the fluid in the first sedimentation area 3 enters the second sedimentation area 6 through the first fluid channel 2, a large amount of solid sand is deposited in the first sedimentation area 3, the remaining fluid can be discharged to the second sedimentation area 6 through the second manual channel 8 by lifting the handle 15 and moving the plug plate 17 upward, most of the fluid in the second sedimentation area 6 is discharged to the liquid outlet 4 through the second fluid channel 5, a small amount of solid sand is deposited in the second sedimentation area 6, the remaining fluid can be discharged to the liquid outlet through the first manual channel 7 by lifting the handle 15 and moving the plug plate 17 upward, when the entire outer shell 9 is tilted to a certain angle by opening the hydraulic telescopic device 11 after the liquid is discharged, the sand outlet valve 10 is opened to discharge the sand, as shown in Figure 2 .
[0057] Example 5
[0058] The ground sand setting device suitable for fracturing flowback fluid has the structure as shown in Figure 1 , which comprises an outer shell 9 mounted on a liquid carrying vehicle chassis, a sand outlet valve 10 is arranged on the side wall of the outer shell 9 away from the vehicle head, a flowback fluid inlet 1 is arranged at the end of the outer shell 9 close to the sand outlet valve 10, a liquid outlet is arranged at the lower end of the side wall of the outer shell 9 close to the vehicle head, the direction from the flowback fluid inlet 1 to the liquid outlet of the outer shell 9 is sequentially divided into a first sedimentation area 3, a second sedimentation area 6 and an outlet area 14 by a first partition plate 12 and a second partition plate 13, a plurality of first fluid channels 2 are uniformly arranged at the upper middle position of the first partition plate 12, and a plurality of second fluid channels 5 are uniformly arranged at the lower middle position of the second partition plate 13.
[0059] The end of the outer shell 9 away from the vehicle head is hinged to the liquid carrying vehicle chassis, a hydraulic telescopic device 11 is further arranged on the liquid carrying vehicle chassis, the telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer shell 9, the included angle between the extension direction of the telescopic end of the hydraulic telescopic device 11 and the horizontal direction towards the vehicle tail is an acute angle, when the telescopic end of the hydraulic telescopic device 11 is extended, the end of the outer shell 9 close to the vehicle head is lifted, and the end of the outer shell 9 hinged to the liquid carrying vehicle chassis rotates along the hinge.
[0060] The bottom of the first partition plate 12 and the second partition plate 13 is further respectively provided with a second manual channel 8 and a first manual channel 7.
[0061] The second manual passage 8 and the first manual passage 7 are structurally identical, and each includes a rectangular passage opening arranged at the lower end of the first partition plate 12 and the second partition plate 13, and the rectangular passage opening is provided with a slot at both sides of the first partition plate 12 and the second partition plate 13, and a plug plate 17 is inserted into the slot, and a handle 15 is connected to the upper end of the plug plate 17, and the other end of the handle 15 extends out of the top of the outer shell 9.
[0062] The fracturing pipeline and the liquid outlet pipe 4 are connected to the fracturing flowback liquid inlet 1 and the liquid outlet through threaded connection respectively.
[0063] The working principle of the embodiment is as follows:
[0064] The fracturing flowback liquid enters the shell through the fracturing pipeline and the fracturing flowback liquid inlet 1, and most of the fluid in the first sedimentation area 3 enters the second sedimentation area 6 through the first fluid channel 2, and a large amount of solid sand is deposited in the first sedimentation area 3, the plug plate 17 is moved upward by lifting the handle 15, and the remaining fluid can be discharged to the second sedimentation area 6 through the second manual passage 8; most of the fluid in the second sedimentation area 6 is discharged to the liquid outlet 4 through the second fluid channel 5, and a small amount of solid sand is deposited in the second sedimentation area 6, the plug plate 17 is moved upward by lifting the handle 15, and the remaining fluid can be discharged to the liquid outlet through the second manual passage 7, and when the liquid is completely discharged, the entire outer shell 9 is tilted to a certain angle by opening the hydraulic telescopic device 11, and the sand outlet valve 10 is opened to discharge the sand, as shown in Figure 2 .
[0065] Example 6
[0066] The ground sand setting device suitable for fracturing flowback liquid has the structure as shown in Figure 1 , and includes an outer shell 9 mounted on a liquid transporting vehicle chassis, a sand outlet valve 10 is arranged on the side wall of the outer shell 9 away from the vehicle head of the liquid transporting vehicle, a fracturing flowback liquid inlet 1 is arranged at the end of the top of the outer shell 9 close to the sand outlet valve 10, a liquid outlet is arranged at the lower end of the side wall of the outer shell 9 close to the vehicle head of the liquid transporting vehicle, and the outer shell 9 is sequentially divided into a first sedimentation area 3, a second sedimentation area 6 and an outlet area 14 from the fracturing flowback liquid inlet 1 to the liquid outlet through the first partition plate 12 and the second partition plate 13, a plurality of first fluid channels 2 are uniformly arranged at the upper position of the middle of the first partition plate 12, and a plurality of second fluid channels 5 are uniformly arranged at the lower position of the middle of the second partition plate 13.
[0067] The outer shell 9 is hinged to the chassis of the liquid transport vehicle at the end away from the vehicle head. A hydraulic telescopic device 11 is also arranged on the chassis of the liquid transport vehicle, and the telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer shell 9. The angle between the extension direction of the telescopic end of the hydraulic telescopic device 11 and the horizontal direction towards the vehicle tail is an acute angle. When the telescopic end of the hydraulic telescopic device 11 is extended, the end of the outer shell 9 close to the vehicle head is lifted, and the end of the outer shell 9 hinged to the chassis of the liquid transport vehicle rotates along the hinge.
[0068] The first partition plate 12 and the second partition plate 13 are also respectively provided with a second manual passage 8 and a first manual passage 7 at the bottom.
[0069] The second manual passage 8 and the first manual passage 7 are the same in structure, and each includes a rectangular passage opening arranged at the lower end of the first partition plate 12 or the second partition plate 13. The rectangular passage opening is provided with a slot at each side of the first partition plate 12 or the second partition plate 13. A plug plate 17 is inserted into the slot. The upper end of the plug plate 17 is connected with a handle 15, and the other end of the handle 15 extends out of the top of the outer shell 9. By pulling the handle 15, the plug plate 17 is moved upwards to leak out of the rectangular passage opening or is moved downwards to block the rectangular passage opening.
[0070] The fracturing pipeline and the liquid outlet pipe 4 are connected to the fracturing flowback liquid inlet 1 and the liquid outlet through threaded connection respectively.
[0071] The liquid outlet valve 16 is arranged at the end of the liquid outlet pipe 4 away from the outer shell 9.
[0072] The working principle of the embodiment is as follows:
[0073] The fracturing flowback liquid enters the shell through the fracturing pipeline and the fracturing flowback liquid inlet 1. Most of the fluid in the first sedimentation area 3 enters the second sedimentation area 6 through the first fluid channel 2. A large amount of solid sand is deposited in the first sedimentation area 3. By lifting the handle 15, the plug plate 17 is moved upwards, and the remaining fluid can be discharged to the second sedimentation area 6 through the second manual passage 8. Most of the fluid in the second sedimentation area 6 is discharged to the liquid outlet 4 through the second fluid channel 5. A small amount of solid sand is deposited in the second sedimentation area 6. By lifting the handle 15, the plug plate 17 is moved upwards, and the remaining fluid can be discharged to the liquid outlet through the second manual passage 7. After the liquid is discharged, the hydraulic telescopic device 11 is opened to tilt the entire outer shell 9 to a certain angle, and the sand outlet valve 10 is opened to discharge the sand, as shown in Figure 2 .
[0074] Example 7
[0075] The ground sand setting device suitable for fracturing flowback liquid has the structure as shown in Figure 1As shown, the device comprises an outer shell 9 mounted on the chassis of the liquid transport vehicle, a sand outlet valve 10 is arranged on the side wall of the outer shell 9 away from the front of the liquid transport vehicle, a return liquid inlet 1 is arranged on the end of the outer shell 9 near the sand outlet valve 10, a liquid outlet is arranged on the lower end of the side wall of the end of the outer shell 9 near the front of the liquid transport vehicle, and the direction from the return liquid inlet 1 to the liquid outlet of the outer shell 9 is sequentially divided into a first sedimentation zone 3, a second sedimentation zone 6 and an outlet zone 14 by a first partition 12 and a second partition 13. A plurality of first fluid channels 2 are uniformly arranged at the upper middle position of the first partition 12, and a plurality of second fluid channels 5 are uniformly arranged at the lower middle position of the second partition 13.
[0076] The end of the outer shell 9 away from the front of the liquid transport vehicle is hinged to the chassis of the liquid transport vehicle, and a hydraulic telescopic device 11 is further arranged on the chassis of the liquid transport vehicle. The telescopic end of the hydraulic telescopic device 11 is hinged to the bottom of the outer shell 9, the included angle between the extension direction of the telescopic end of the hydraulic telescopic device 11 and the horizontal direction towards the tail of the liquid transport vehicle is an acute angle, when the telescopic end of the hydraulic telescopic device 11 is extended, the end of the outer shell 9 near the front of the liquid transport vehicle is lifted, and the end of the outer shell 9 hinged to the chassis of the liquid transport vehicle rotates along the hinge.
[0077] The bottom of the first partition 12 and the second partition 13 is further provided with a second manual channel 8 and a first manual channel 7 respectively.
[0078] The second manual channel 8 and the first manual channel 7 are the same in structure, both comprising a rectangular channel opening arranged at the lower end of the first partition 12 and the second partition 13, the rectangular channel opening is provided with a slot on both sides of the first partition 12 and the second partition 13, a plug-in plate 17 is inserted into the slot, a handle 15 is connected to the upper end of the plug-in plate 17, and the other end of the handle 15 extends out of the top of the outer shell 9.
[0079] Threads are arranged on the return liquid inlet 1 and the liquid outlet, and a fracturing pipeline and a liquid outlet pipe 4 are connected to the return liquid inlet 1 and the liquid outlet respectively by threaded connection.
[0080] The end of the liquid outlet pipe 4 away from the outer shell 9 is provided with a liquid outlet valve 16.
[0081] The hydraulic telescopic device 11 is a hydraulic cylinder, and the piston rod extension end of the hydraulic cylinder is hinged to the bottom of the outer shell 9.
[0082] The working principle of the embodiment is as follows:
[0083] The fracturing flowback fluid enters the casing through the fracturing pipeline and the flowback fluid inlet 1, most of the fluid in the first sedimentation area 3 enters the second sedimentation area 6 through the first fluid channel 2, a large amount of solid sand is deposited in the first sedimentation area 3, the remaining fluid can be discharged to the second sedimentation area 6 through the second manual channel 8 by lifting the handle 15 to make the plug 17 move up, most of the fluid in the second sedimentation area 6 is discharged to the liquid outlet 4 through the second fluid channel 5, a small amount of solid sand is deposited in the second sedimentation area 6, the remaining fluid can be discharged to the liquid outlet through the second manual channel 7 by lifting the handle 15 to make the plug 17 move up, and the liquid outlet valve 16 is opened. After the liquid is discharged, the hydraulic cylinder is opened, the extending end of the hydraulic cylinder is extended to tilt the whole outer casing 9 to a certain angle, the sand outlet valve 10 is opened to discharge the sand, as shown in Figure 2
Claims
1. A surface sand disposal device suitable for use with fracturing flowback fluids, characterized in that, The utility model provides a liquid carrying vehicle liquid return and discharge device, which comprises an outer shell (9) mounted on the chassis of the liquid carrying vehicle, a sand outlet valve (10) arranged on the side wall of the outer shell (9) away from the head of the liquid carrying vehicle, a return liquid inlet (1) arranged at the end of the top of the outer shell (9) close to the sand outlet valve (10), a liquid outlet arranged at the lower end of the side wall of the end of the outer shell (9) close to the head of the liquid carrying vehicle, and a first partition plate (12) and a second partition plate (13) arranged in the outer shell (9) in sequence from the return liquid inlet (1) to the liquid outlet, so that the outer shell (9) is divided into a first deposition area (3), a second deposition area (6) and an outlet area (14) in sequence. The end of the outer shell (9) away from the head of the liquid carrying vehicle is hingedly connected to the chassis of the liquid carrying vehicle, a hydraulic telescopic device (11) is further arranged on the chassis of the liquid carrying vehicle, the telescopic end of the hydraulic telescopic device (11) is hingedly connected to the bottom of the outer shell (9), the angle between the extension direction of the telescopic end of the hydraulic telescopic device (11) and the horizontal direction towards the tail of the liquid carrying vehicle is an acute angle, when the telescopic end of the hydraulic telescopic device (11) is extended, the end of the outer shell (9) close to the head of the liquid carrying vehicle is lifted, and the end of the outer shell (9) hingedly connected to the chassis of the liquid carrying vehicle rotates along the hinge.
2. The ground sand trap suitable for use with fracking flowback fluid of claim 1, wherein, The bottom of the first partition plate (12) and the bottom of the second partition plate (13) are respectively provided with a second manual channel (8) and a first manual channel (7).
3. A ground sand trap suitable for use with fracking flowback fluid according to claim 2, wherein, The second manual channel (8) and the first manual channel (7) are the same in structure and each comprise a rectangular channel opening arranged at the lower end of the first partition plate (12) and the second partition plate (13), a slot arranged on the side of the first partition plate (12) and the second partition plate (13), a plug-in plate (17) inserted into the slot, a handle (15) connected to the upper end of the plug-in plate (17), and the other end of the handle (15) extending out of the top of the outer shell (9).
4. A ground grit trap suitable for use with fracking flowback fluid according to claim 3, wherein, A sealing ring is arranged at the joint between the handle (15) and the outer shell (9).
5. The ground sand trap suitable for use in fracturing flowback fluid according to claim 1, characterized in that, Threads are arranged on the return liquid inlet (1) and the liquid outlet, and a fracturing pipeline and a liquid outlet pipe (4) are respectively connected to the return liquid inlet (1) and the liquid outlet through threaded connection.
6. A ground grit trap suitable for use with fracking flowback fluid according to claim 5, wherein, A liquid outlet valve (16) is arranged at the end of the liquid outlet pipe (4) away from the outer shell (9).
7. The ground sand trap suitable for use with fracking flowback fluid of claim 1, wherein, The hydraulic telescopic device (11) is a hydraulic cylinder.